/* 导航栏 */

.van-nav-bar {
    font-size: 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    border: 5px solid #000;
    padding: 10px;
}

.van-nav-bar button {
    padding: 10px;
}


/* 按钮 */

.van-button {
    background-color: #4CAF50;
    /* Green */
    border: none;
    color: white;
    padding: 15px 32px;
    text-align: center;
    text-decoration: none;
    display: inline-block;
    font-size: 16px;
    border-radius: 10px;
}


/* loading */


.van-loading,
.van-loading:before,
.van-loading:after {
    background: #ccc;
    /*
    * load1：执行的动画名
    * 1s：执行一秒
    * infinite：执行无限次
    * ease-in-out：动画以低速开始和结束
    */
    animation: load1 1s infinite ease-in-out;
    width: 1em;
    height: 4em;
}

.van-loading:before,
.van-loading:after {
    position: absolute;
    top: 0;
    content: '';
}

.van-loading:before {
    left: -1.5em;
}

.van-loading {
    text-indent: -9999em;
    /* margin: 40% auto; */
    font-size: 11px;
    /* 延时0.16s */
    animation-delay: 0.16s;
    position: fixed;
    left: 50%;
    top: 50%;
}

.van-loading:after {
    left: 1.5em;
    /* 延时0.32s */
    animation-delay: 0.32s;
}

@keyframes load1 {
    0%,
    80%,
    100% {
        box-shadow: 0 0 #ccc;
        height: 4em;
    }
    40% {
        /* 实现上部拉伸 */
        box-shadow: 0 -2em #ccc;
        /* 实现下部拉伸 */
        height: 5em;
    }
}


/* 弹框*/

.van-tips {
    background: black;
    opacity: .5;
    padding: 10px;
    position: fixed;
    left: 50%;
    bottom: 20%;
    color: #fff;
    border-radius: 10px;
}